- Date: Saturday, April 18, 2026
Start Mix French Marigold seeds indoors 6–8 weeks before the last spring frost. Plant 2-3
seeds per cell in moist seed-starting mix, covering them lightly with 1/4 inch of soil.
Keep soil at 70–75°F (21–24°C) with a humidity dome, ensuring consistent moisture. Seeds
sprout in 5–10 days;
provide bright light immediately Lighting: Once sprouted, remove the dome and provide
intense light (sunny south-facing window or grow lights for 14-16 hours/day) to prevent
leggy seedlings.
Transplanting: Harden off seedlings once danger of frost has passed, gradually introducing
them to the outdoors before planting them 8-10 inches apart
GROWLING GARDEN 